JP4320710B2 - 極異方性リング磁石および成形金型 - Google Patents
極異方性リング磁石および成形金型 Download PDFInfo
- Publication number
- JP4320710B2 JP4320710B2 JP2003071550A JP2003071550A JP4320710B2 JP 4320710 B2 JP4320710 B2 JP 4320710B2 JP 2003071550 A JP2003071550 A JP 2003071550A JP 2003071550 A JP2003071550 A JP 2003071550A JP 4320710 B2 JP4320710 B2 JP 4320710B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic pole
- ring magnet
- die
- axial direction
- polar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000000465 moulding Methods 0.000 title claims description 43
- 230000005291 magnetic effect Effects 0.000 claims description 177
- 230000004907 flux Effects 0.000 claims description 33
- 230000007935 neutral effect Effects 0.000 claims description 24
- 238000004804 winding Methods 0.000 claims description 13
- 230000004323 axial length Effects 0.000 claims description 12
- 125000006850 spacer group Chemical group 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 239000000843 powder Substances 0.000 description 24
- 238000005245 sintering Methods 0.000 description 18
- 230000005415 magnetization Effects 0.000 description 16
- 239000002994 raw material Substances 0.000 description 15
- 239000006247 magnetic powder Substances 0.000 description 13
- 229910000859 α-Fe Inorganic materials 0.000 description 12
- 230000000694 effects Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- 229910052742 iron Inorganic materials 0.000 description 9
- 239000000463 material Substances 0.000 description 9
- 239000000203 mixture Substances 0.000 description 9
- 239000012778 molding material Substances 0.000 description 9
- 229910045601 alloy Inorganic materials 0.000 description 8
- 239000000956 alloy Substances 0.000 description 8
- 239000013078 crystal Substances 0.000 description 8
- 238000000748 compression moulding Methods 0.000 description 7
- 239000010949 copper Substances 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 5
- 230000005347 demagnetization Effects 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 229910052761 rare earth metal Inorganic materials 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- 229910052692 Dysprosium Inorganic materials 0.000 description 4
- 229910052779 Neodymium Inorganic materials 0.000 description 4
- 229910052777 Praseodymium Inorganic materials 0.000 description 4
- 239000000654 additive Substances 0.000 description 4
- 239000011230 binding agent Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 238000005336 cracking Methods 0.000 description 4
- 239000003822 epoxy resin Substances 0.000 description 4
- 229910000765 intermetallic Inorganic materials 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 229920000647 polyepoxide Polymers 0.000 description 4
- 238000010298 pulverizing process Methods 0.000 description 4
- 229920006395 saturated elastomer Polymers 0.000 description 4
- 230000000996 additive effect Effects 0.000 description 3
- 229910052681 coesite Inorganic materials 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 229910052906 cristobalite Inorganic materials 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000004070 electrodeposition Methods 0.000 description 3
- 229910052733 gallium Inorganic materials 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 229910052682 stishovite Inorganic materials 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- 238000004381 surface treatment Methods 0.000 description 3
- 229920001187 thermosetting polymer Polymers 0.000 description 3
- 229910052905 tridymite Inorganic materials 0.000 description 3
- 239000011701 zinc Substances 0.000 description 3
- 229910052725 zinc Inorganic materials 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910052684 Cerium Inorganic materials 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 2
- 239000004734 Polyphenylene sulfide Substances 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 239000012298 atmosphere Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000006356 dehydrogenation reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 229910000018 strontium carbonate Inorganic materials 0.000 description 2
- 229910003145 α-Fe2O3 Inorganic materials 0.000 description 2
- 208000031872 Body Remains Diseases 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000005374 Kerr effect Effects 0.000 description 1
- 229910001122 Mischmetal Inorganic materials 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000012300 argon atmosphere Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- VTYYLEPIZMXCLO-UHFFFAOYSA-L calcium carbonate Substances [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- UBEWDCMIDFGDOO-UHFFFAOYSA-N cobalt(II,III) oxide Inorganic materials [O-2].[O-2].[O-2].[O-2].[Co+2].[Co+3].[Co+3] UBEWDCMIDFGDOO-UHFFFAOYSA-N 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 208000035475 disorder Diseases 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum oxide Inorganic materials [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 description 1
- 239000006249 magnetic particle Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- LEDMRZGFZIAGGB-UHFFFAOYSA-L strontium carbonate Chemical compound [Sr+2].[O-]C([O-])=O LEDMRZGFZIAGGB-UHFFFAOYSA-L 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Landscapes
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003071550A JP4320710B2 (ja) | 2002-03-29 | 2003-03-17 | 極異方性リング磁石および成形金型 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002094957 | 2002-03-29 | ||
| JP2003071550A JP4320710B2 (ja) | 2002-03-29 | 2003-03-17 | 極異方性リング磁石および成形金型 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2004007960A JP2004007960A (ja) | 2004-01-08 |
| JP2004007960A5 JP2004007960A5 (enExample) | 2006-03-30 |
| JP4320710B2 true JP4320710B2 (ja) | 2009-08-26 |
Family
ID=30446361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2003071550A Expired - Lifetime JP4320710B2 (ja) | 2002-03-29 | 2003-03-17 | 極異方性リング磁石および成形金型 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4320710B2 (enExample) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4279757B2 (ja) | 2004-09-22 | 2009-06-17 | 三菱電機株式会社 | リング型磁石成形体の製造装置およびリング型焼結磁石の製造方法 |
| KR101385212B1 (ko) * | 2012-12-17 | 2014-04-15 | 엘지이노텍 주식회사 | 모터 |
| JP6408820B2 (ja) * | 2014-07-29 | 2018-10-17 | 日東電工株式会社 | 回転電機用永久磁石、回転電機用永久磁石の製造方法、回転電機及び回転電機の製造方法 |
| JP2020054199A (ja) * | 2018-09-28 | 2020-04-02 | 日本電産サーボ株式会社 | モータおよびモータの製造方法 |
| WO2023021600A1 (ja) * | 2021-08-18 | 2023-02-23 | 三菱電機株式会社 | 界磁子および電動機 |
-
2003
- 2003-03-17 JP JP2003071550A patent/JP4320710B2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2004007960A (ja) | 2004-01-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7906881B2 (en) | Motor | |
| EP2063438B1 (en) | Production method of a radial anisotropic sintered magnet | |
| JP5267459B2 (ja) | Ｒ−ｔｍ−ｂ系ラジアル異方性リング磁石、その製造方法、及びそれを製造するための金型、並びにブラシレスモータ用ロータ | |
| US4888506A (en) | Voice coil-type linear motor | |
| CN101303929B (zh) | 放射状各向异性环形磁铁 | |
| JPH01139738A (ja) | 磁気異方性磁石材料の製造方法及びその装置 | |
| JP2003017309A (ja) | 焼結リング磁石およびその製造方法 | |
| US20070151629A1 (en) | Methods of producing radial anisotropic cylinder sintered magnet and permanent magnet motor-use cyclinder multi-pole magnet | |
| US7626300B2 (en) | Radial anisotropic cylindrical sintered magnet and permanent magnet motor | |
| JP4320710B2 (ja) | 極異方性リング磁石および成形金型 | |
| JP6384543B2 (ja) | 極異方性リング磁石、及びそれを用いた回転子 | |
| JP2002057015A (ja) | 異方性磁石とその製造方法およびこれを用いたモータ | |
| JP2004153867A (ja) | ラジアル異方性焼結磁石及びその製造方法並びに磁石ロータ及びモータ | |
| JP3719782B2 (ja) | 表面多極異方性リング磁石の製造方法 | |
| JP2004146542A (ja) | 磁石用固形材料及びその製造方法 | |
| JP2004146543A (ja) | 磁石用固形材料およびその製造方法 | |
| JPH04143221A (ja) | 永久磁石の製造方法 | |
| JP3809175B2 (ja) | 表面多極異方性リング磁石 | |
| JPH0578166B2 (enExample) | ||
| JPH08130143A (ja) | 異方性ボンド磁石の製造方法および異方性ボンド磁石 | |
| JPS62224915A (ja) | 希土類磁石の製造方法 | |
| JP2004146432A (ja) | 磁石用固形材料 | |
| JPH065642B2 (ja) | Ｒ−ｔｍ−ｂ系ラジアル異方性永久磁石及びその製造方法 | |
| JPH06302427A (ja) | 円筒状異方性磁石 | |
| JP2017212421A (ja) | 極配向異方性圧縮成形ボンド磁石とその製造方法 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A711 | Notification of change in applicant |
Free format text: JAPANESE INTERMEDIATE CODE: A712 Effective date: 20040526 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20060203 |
|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20060203 |
|
| A711 | Notification of change in applicant |
Free format text: JAPANESE INTERMEDIATE CODE: A712 Effective date: 20070612 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20090508 |
|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20090521 |
|
| R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 Ref document number: 4320710 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120612 Year of fee payment: 3 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120612 Year of fee payment: 3 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130612 Year of fee payment: 4 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130612 Year of fee payment: 4 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20140612 Year of fee payment: 5 |
|
| EXPY | Cancellation because of completion of term |